Technical Support

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We’ve assembled an expert team with broad industry experience to assist your technicians in the field.


FSR Chris Kowalczyk has over 25 years’ experience, and studied HVAC design at Northeastern University. He holds EPA, Air Balancing, and NATE certifications, and is a licensed New Hampshire gas fitter. Chris is adept at helping both junior and veteran technicians quickly diagnose and repair problems in the field, helping you reduce expensive call-backs that eat into your profits. To reach Chris, call (781) 273-2050 or email Field Tech Support.


Package System Troubleshooting Form (2.5 MB PDF)
Split System Troubleshooting Form (1.3 MB PDF)


Fujitsu VRF Manager Tim Conrad has more than 30 years’ experience in the installation, servicing and sales of residential and commercial HVACR equipment. Prior to joining us, Tim provided field tech support for The Hutton Company in Texas. He served on the board of the City of Lubbock’s Model and Codes Construction Advisory Board, and as president and training coordinator for the South Plains Texas Chapter of ACCA. Tim is also a skilled instructor, and a NATE and ESCO proctor.


Parts Manager Pat Varley brings extensive industry knowledge and expertise to the team, including serving as a regional sales and marketing manager for Trane. He is a member of ASHRAE, and the Refrigeration Service Engineers Society, and a graduate of Suffolk University. He holds Type I and Type II EPA Refrigeration Certifications, and a Master License (unrestricted) in HVAC Sheet Metal in MA.

Parts Manager Woody Sunderman has supported products for a variety of HVAC manufacturers for over 25 years. Prior to joining Air Purchases, he was a sales manager of residential and commercial sales for the J.B. Meyers Group, a large American Standard distributor. He is a graduate of the University of Texas, and is fluent in Spanish.